Advantage BG-N4 Series, Instruction Manual

Page: 29 / 76

BG-N4 Glycol Chiller
Page: 29
ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
Discharge indicates the refrigerant discharge pressure, sometimes
referred to as 'high' or 'head' pressure.
To Process indicates the process cooling fluid (water or water/glycol)
pressure.
D. When the compressor is turned off, the instrument will wait 3 minutes
before turning it back on regardless of the To Process temperature or
Setpoint. If a low pressure or optional low flow fault has occurred, the
control will attempt to turn the compressor back on after 3 minutes. If the
fault condition remians, the compressor will not restart and the control
will retry after 1 minute. The sequence will repeat 3 times then the
system will lock-out and the unit must be powered off/on to restart the
unit. If a high pressure fault occurs the fault must be acknowledged by
pressing the start button before the system will attempt to restart.
E. Under normal conditions (no fault conditions, compressor has been off
for 3 minutes) the instrument will turn on the compressor when the To
Process temperature is above the Setpoint. The instrument will engage
the capacity control system (digital unloading or hot gas bypass) when
the To Process temperature is below the Setpoint by no more than 3
degrees.Units equipped with a digital scroll compressor (includes a “D” in
the model number such as BGD-10A) will operate in the unloaded state
for a maximum of 50 seconds out of every 60 seconds. The instrument
will turn off the compressor and capacity control system when the To
Process temperature is 4 degrees or more below the setpoint.
To Process
S e t p o i n t : 5 0 ° F
C i r c u l a t i n g
50°F
To Process
S e t p o i n t : 5 0 ° F
C i r c u l a t i n g
50°F
To Process
S e t p o i n t : 5 0 ° F
D i s c h a r g e 2 8 5 P S I
50°F
To Process
S e t p o i n t : 5 0 ° F
C i r c u l a t i n g
50°F
To Process
S e t p o i n t : 5 0 ° F
C i r c u l a t i n g
50°F
To Process
S e t p o i n t : 5 0 ° F
T o P r o c e s s 4 4 P S I
50°F